中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

28 records (took 0.023 seconds)

    11.
    发明专利
    未知

    公开(公告)号：DE3819487A1

    公开(公告)日：1989-12-14

    申请号：DE3819487

    申请日：1988-06-08

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  KOEFFER DIETER DR ,  KLAEUI WALTER PROF DR ,  SONG CHOONG

    IPC: B01J31/22 ,  B01J31/16 ,  B01J31/18 ,  C07B61/00 ,  C07C1/00 ,  C07C2/48 ,  C07C5/03 ,  C07C5/08 ,  C07C13/18 ,  C07C45/00 ,  C07C45/50 ,  C07C47/02 ,  C07C67/00 ,  C07C67/347 ,  C07C69/76 ,  C07F15/00 ,  C07F15/06

    Abstract: Transition metal complexes of the general formula I [A]x- [Q]+xI where Q is one equivalent of a cation, x is from 0 to 2 and A is a transition metal complex of the general formula A where n is from 1 to 3, M is positively charged cobalt, rhodium, iridium or ruthenium, the ligands B are phosphonic, arsonic, phosphinic and/or arsinic acid ligands which are esterified with identical or different alcohols, one or more of these alcohol components carrying a functional group, L is the radicals R5 are identical or different radicals from the group consisting of C1-C4-alkyl and phenyl, p is an integer from 0 to 6, q is an integer from 0 to 5, and R1 is fluorine, chlorine, bromine, iodine, cyanide, isocyanide, cyanate, isocyanate, thiocyanate, isothiocyanate, C1-C4-alkyl, C1-C4-trialkyl phosphite or triaryl phosphite, are used as catalysts, or prepared in situ, in processes for the cyclotrimerization of acetylene compounds, for the catalytic hydrogenation of unsaturated compounds and for the hydroformylation of alkenes.

    14.
    发明专利
    未知

    公开(公告)号：DE3924720A1

    公开(公告)日：1991-01-31

    申请号：DE3924720

    申请日：1989-07-26

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR ,  ROEPER MICHAEL DR

    IPC: B01J31/24 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02

    Abstract: Olefinically unsaturated compounds are hydroformylated in an organic reaction medium with the aid of rhodium complex catalysts which are soluble in the reaction medium by performing the reaction in the presence of water-insoluble rhodium complex catalysts and also in the presence of arylthiols of the general formula I Ar-SH I where Ar is substituted or unsubstituted aryl.

    16.
    发明专利
    未知

    公开(公告)号：DE3902892A1

    公开(公告)日：1990-08-02

    申请号：DE3902892

    申请日：1989-02-01

    Applicant: BASF AG

    Inventor： BERTLEFF WERNER DR ,  KOEFFER DIETER DR

    IPC: B01J31/20 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02

    Abstract: Preparation of 2,2-dialkylpropionaldehydes I … … in which R and R stand for C1- to C4-alkyl groups, by hydroformylation of 1,1-dialkylethylenes II … … with cobalt carbonyl complexes by… (a) carrying out the reaction in the presence of water-containing solvents in which water is soluble or at least partially soluble, the water content of the reaction mixture being between 0.1 and 20% by weight, or… (b) carrying out the reaction in the presence of a lactone which can carry one or more C1- to C4-alkyl groups as substituents, or of an aliphatic or cycloaliphatic sulphone.

    17.
    发明专利
    未知

    公开(公告)号：DE3831327A1

    公开(公告)日：1990-03-29

    申请号：DE3831327

    申请日：1988-09-15

    Applicant: BASF AG

    Inventor： KOEFFER DIETER DR ,  BERTLEFF WERNER DR

    IPC: C07D325/00 ,  B01J31/20 ,  B01J31/26 ,  C07B61/00 ,  C07C41/48 ,  C07C43/315

    Abstract: 1,1,2-Trialkoxyethanes of the general formula I (I) where R1 to R3 are each independently of the others C1-C20-alkyl or cycloalkyl, or R1 and R2 may be linked together to form a 5-, 6- or 7-membered ring, are prepared by reacting formaldehyde dialkyl acetals of the general formula II (II) where R1 and R2 are each as defined above, or compounds which are capable of forming formaldehyde dialkyl acetals under the reaction conditions, with carbon monoxide, hydrogen and alkanols R3OH under superatmospheric pressure at elevated temperature in the presence of a catalyst composed of a cobalt carbonyl compound and a promotor, wherein the promotor is an alkali metal, alkaline earth metal or ammonium salt of a protogenic compound having an acid constant Ka of from 10-2 to 10-14, an alkali metal or alkaline earth metal hydroxide or an aminocarboxylic acid.

Patent Agency Ranking